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Geranoaetus
''Geranoaetus'' is a genus of birds of prey in the family Accipitridae The Accipitridae () is one of the four families within the order Accipitriformes, and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects .... It contains three species. ''Geranoaetus'' are huge birds. Their wing span is about 70-80 in and their total length is 25-30 in. References External links * * {{Taxonbar, from=Q9267406 Bird genera * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geranoaetus Melanoleucus
The black-chested buzzard-eagle (''Geranoaetus melanoleucus'') is a bird of prey of the hawk and eagle family (biology), family (Accipitridae). It lives in open regions of South America. This species is also known as the black buzzard-eagle, the gray buzzard-eagle, or analogously with "eagle" or "eagle-buzzard" replacing "buzzard-eagle", or as the Chilean blue eagle. It is sometimes placed in the genus ''Buteo''. Description This is a huge eagle-like "buzzard" ("hawk" in American terminology). It has a total length of and a wingspan of .Blake, E. R. 1977. ''Manual of neotropical birds. Volume 1''. University of Chicago Press, Chicago, Illinois. In the nominate race, males averaged and females averaged , with a range between both of . In the linearly slightly smaller ''G. m. australis'' subspecies, a male weighed and a female weighed , indicating the bulk of the two races is roughly the same.''CRC Handbook of Avian Body Masses, 2nd Edition'' by John B. Dunning Jr. (Editor). CRC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geranoaetus
''Geranoaetus'' is a genus of birds of prey in the family Accipitridae The Accipitridae () is one of the four families within the order Accipitriformes, and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects .... It contains three species. ''Geranoaetus'' are huge birds. Their wing span is about 70-80 in and their total length is 25-30 in. References External links * * {{Taxonbar, from=Q9267406 Bird genera * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geranoaetus Albicaudatus
The white-tailed hawk (''Geranoaetus albicaudatus'') is a large bird of prey species found in tropical and subtropical environments of the Americas. Description The white-tailed hawk is a large, stocky hawk. It is similar in size to the Swainson's (''Buteo swainsoni'') and red-tailed hawks (''Buteo jamaicensis''), with mean measurements slightly larger than the former and slightly smaller than the latter. It can attain a total length of and a wingspan of . Body mass has been reported as (''B. a. hysopodius'') and (''B. a. colonus''). Standard measurements include a wing chord of , a tail of , and a tarsus of . Adult birds are grey above and white below and on the rump, with faint pale grey or rufous barring. The short tail is white with a narrow black band near the end that is conspicuous in flight. A rusty-red shoulder patch is also characteristic when the bird is perched with wings closed. The upperwings are dark, mixed with grey near the bases of the blackish primary remi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geranoaetus Polyosoma
The variable hawk (''Geranoaetus polyosoma'') is a polymorphic species of bird of prey in the family Accipitridae. It is widespread and often common in open habitats in western and southern South America, including the Falkland Islands. Its taxonomy is disputed, with some splitting it into the widespread red-backed hawk (''G. polyosoma'') and the Puna hawk or Gurney's hawk (''G. poecilochrous'') of the central and north Andean highlands, but the differences between the two are unclear. Most recent authorities have supported the lumping together of the two hawks although the issue still is controversial.South American Classification Committee (2007). Merge Buteo poecilochrous into B. polyosoma.'. Accessed 10-07-2009South American Classification Committee (2009). '. Accessed 10-07-2009 On the contrary, the rare taxon from the Juan Fernández Islands is relatively distinctive, and possibly worthy of species recognition as the Juan Fernández hawk (''B. exsul'').Jaramillo, A. Burke, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accipitridae
The Accipitridae () is one of the four families within the order Accipitriformes, and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a few feeding on fruit. The Accipitridae have a cosmopolitan distribution, being found on all the world's continents (except Antarctica) and a number of oceanic island groups. Some species are migratory. The family contains 256 species which are divided into 12 subfamilies and 75 genera. Many well-known birds such as hawks, eagles, kites, harriers and Old World vultures are included in this group. The osprey is usually placed in a separate family ( Pandionidae), as is the secretary bird ( Sagittariidae), and the New World vultures are also usually now regarded as a separate family or order. Karyotype data indicate the accipitrids analysed are indeed a distinct monophyletic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Jakob Kaup
Johann Jakob von Kaup (10 April 1803 – 4 July 1873) was a German naturalist. A proponent of natural philosophy, he believed in an innate mathematical order in nature and he attempted biological classifications based on the Quinarian system. Kaup is also known for having coined popular prehistoric taxa like ''Pterosauria'', ''Machairodus'', ''Deinotherium'', ''Dorcatherium'', and ''Chalicotherium''. Biography He was born at Darmstadt. After studying at Göttingen and Heidelberg he spent two years at Rijksmuseum van Natuurlijke Historie, Leiden, where his attention was specially devoted to the amphibians and fishes. He then returned to Darmstadt as an assistant in the grand ducal museum, of which in 1840 he became inspector. In 1829 he published ''Skizze zur Entwickelungsgeschichte der europäischen Thierwelt'', in which he regarded the animal world as developed from lower to higher forms, from the amphibians through the birds to the beasts of prey; but subsequently he repudiated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Of Prey
Birds of prey or predatory birds, also known as (although not the same as) raptors, are hypercarnivorous bird species that actively predation, hunt and feed on other vertebrates (mainly mammals, reptiles and smaller birds). In addition to speed and strength, these predators have bird vision, keen eyesight for detecting prey from a distance or during flight, strong feet with sharp talon (anatomy), talons for grasping or killing prey, and powerful, curved beaks for tearing off flesh. Although predatory birds primarily hunt live prey, many species (such as fish eagles, vultures and condors) also scavenge and eat carrion. Although the term "bird of prey" could theoretically be taken to include all birds that actively hunt and eat other animals, ornithologists typically use the narrower definition followed in this page, excluding many piscivorous predators such as storks, Crane (bird), cranes, herons, gulls, skuas, penguins, and kingfishers, as well as many primarily insectivorous bir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Frederick Miller
John Frederick Miller (active 1772–1796) was an English illustrator, mainly of botanical subjects. Miller was the son of the artist Johann Sebastian Müller (1715 – c. 1790). Miller, along with his brother James, produced paintings from the sketches made by Sydney Parkinson on James Cook's first voyage. He accompanied Joseph Banks on his expedition to Iceland in 1772. Between 1776 and 1785 Miller published 60 hand-coloured engravings in his ''Icones animalium et plantarum'' or ''Various subjects of Natural History, wherein are delineated Birds, Animals and many curious Plants, &c''. Very few copies of this work survive. The plates include binomial names, some of which contain the oldest published specific epithet and therefore have priority over later scientific names. There are seven species of bird for which Miller's plate is the holotype; these include the king penguin, the secretarybird, the crested caracara and the extinct Tahiti crake. The plates were re-issued in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Pierre Vieillot
Louis Pierre Vieillot (10 May 1748, Yvetot – 24 August 1830, Sotteville-lès-Rouen) was a French ornithologist. Vieillot is the author of the first scientific descriptions and Linnaean names of a number of birds, including species he collected himself in the West Indies and North America and South American species discovered but not formally named by Félix de Azara and his translator Sonnini de Manoncourt. He was among the first ornithologists to study changes in plumage and one of the first to study live birds. At least 77 of the genera erected by Vieillot are still in use. Biography Vieillot was born in Yvetot. He represented his family's business interests in Saint-Domingue (Haiti) on Hispaniola, but fled to the United States during the Haitian rebellions that followed the French Revolution. On Buffon's advice, he collected material for the , the first two volumes of which were published in France beginning in 1807. Vieillot returned to France for the last time in 1798, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Genera
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a four-chambered heart, and a strong yet lightweight Bird skeleton, skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 Order (biology), orders. More than half are passerine or "perching" birds. Birds have Bird wing, wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the Flightless bird, loss of flight in some birds, including ratites, penguins, and diverse endemism, endemic island species. The digestive and respiratory systems of birds are also uniquely a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
